JPS6383940U - - Google Patents
Info
- Publication number
- JPS6383940U JPS6383940U JP17753386U JP17753386U JPS6383940U JP S6383940 U JPS6383940 U JP S6383940U JP 17753386 U JP17753386 U JP 17753386U JP 17753386 U JP17753386 U JP 17753386U JP S6383940 U JPS6383940 U JP S6383940U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- phase
- voltage
- ground fault
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 3
- 238000009499 grossing Methods 0.000 claims 2
- 239000004065 semiconductor Substances 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 230000018199 S phase Effects 0.000 description 2
- 229910001219 R-phase Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Emergency Protection Circuit Devices (AREA)
Description
図面は本考案の一実施例を示す地絡相判別装置
の回路説明図である。
１……ＴＮＲ、２……絶縁変圧器、３……リア
クトル、４……コンデンサ、５……整流器、６…
…抵抗、７……トランジスタ、８……ツエナーダ
イオード、９……ダイオード、１０……フオトト
ランジスタ、１１……可変抵抗器、１２……出力
リレー、１３……外部出力接点、１４……電圧電
流変換回路、１５……外部電流出力部、１６……
主回路母線Ｒ相、１７……主回路母線Ｓ相、１８
……主回路母線Ｔ相、１９……三相接地形計器用
変圧器、２０……Ｒ相地絡表示ランプ、２１……
Ｓ相地絡表示ランプ、２２……Ｔ相地絡表示ラン
プ、２３……零相電圧計。
The drawing is a circuit explanatory diagram of a ground fault phase discriminating device showing an embodiment of the present invention. 1...TNR, 2...Isolation transformer, 3...Reactor, 4...Capacitor, 5...Rectifier, 6...
... Resistor, 7 ... Transistor, 8 ... Zener diode, 9 ... Diode, 10 ... Phototransistor, 11 ... Variable resistor, 12 ... Output relay, 13 ... External output contact, 14 ... Voltage current Conversion circuit, 15... External current output section, 16...
Main circuit bus R phase, 17... Main circuit bus S phase, 18
...Main circuit bus T-phase, 19...Three-phase grounded instrument transformer, 20...R-phase ground fault indicator lamp, 21...
S-phase ground fault indicator lamp, 22...T-phase ground fault indicator lamp, 23...Zero-phase voltmeter.
Claims (1)
圧を検出する検出回路と、この検出回路に接地さ
れたノイズフイルタ回路及び平滑回路と、この平
滑回路に接続された地絡相判別トランジスタ回路
及び電圧電流変換回路と、この電圧電流変換回路
に接続された出力リレー回路の半導体基板素子と
を具備し、地絡警報出力及び相電圧が外部に出力
できることを特徴とした地絡相検出判別装置。 A detection circuit that detects voltage from each phase on the tertiary side of a three-phase grounded instrument transformer, a noise filter circuit and a smoothing circuit that are grounded to this detection circuit, and a ground fault phase discrimination transistor that is connected to this smoothing circuit. A ground fault phase detection discrimination device comprising a circuit, a voltage-current conversion circuit, and a semiconductor substrate element of an output relay circuit connected to the voltage-current conversion circuit, and capable of outputting a ground fault alarm output and a phase voltage to the outside. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17753386U JPS6383940U (en) | 1986-11-20 | 1986-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17753386U JPS6383940U (en) | 1986-11-20 | 1986-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6383940U true JPS6383940U (en) | 1988-06-01 |
Family
ID=31118819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17753386U Pending JPS6383940U (en) | 1986-11-20 | 1986-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6383940U (en) |
-
1986
- 1986-11-20 JP JP17753386U patent/JPS6383940U/ja active Pending
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